Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6379657 | Composition and process for de-coloring dyed hair | Heribert Lorenz | 2002-04-30 |
| 6302920 | Composition for dyeing and bleaching of human hair and process for its preparation | Heribert Lorenz, Peter F. F. Hirschfeld | 2001-10-16 |